Instances is the right word to use, I think what he meant was that your sentence structure was a bit confusing.

To only apply the duration/effect to one ring at a time you'll want to use the System condition "Pick Random Instance" (or "Pick Nth Instance", if you need/want to be specific with which one is changed) together with the events for the timers, then have a boolean for the ring sprite be true for the duration and use that to detect if the player picks up a ring and if it has that boolean active. If true, add the extra points, if false just add normal points.inkBot2012-10-06 00:31:22